maddyrose814
26.08.2021 •
Mathematics
If AB=CD, CD = 9in, BC = 5x, and AD = 53 in. , find BC
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Ответ:
BC = 35in.
Step-by-step explanation:
AD says the entire line is 53in.
AB says it is equal to CD.
CD says it equals 9in so AB + CD = 18in.
BC says it equals 5x.
AB+BC+CD = AD
(9) + (5x) + (9) = 53
5x + 18 = 53
Subtract 18 from both sides
5x = 35
We can stop here because we know that BC = 5x and 5x = 35in.
Ответ: